Hi,

Have an '05 Civic HX with the value package and I am wondering about upgrading the intake. The car is stock with a manual and I am interested in how well the stock vs. a K&N or other brand aftermarket filter does MPG wise. Is it something that can yield 5-6mpg extra due to more air or designed more for performance? I have no intentions of doing anything else to the car, but wanted to get thoughts from members regarding their experiences if they have tracked MPG or gauge it.

Thanks.